That’s got nothing to do with his point; the point is that sylphies as it is struggle to press any buttons anyway and spend half the fight idling or pushing the “wrong” healing buttons (medica 2 to heal 1 party member anyone), while DPS healers are already juggling damage with their oGCD’s
If you made healing so much more needed you were playing HP whack a mole who would you trust more, the DPS healer with 98% uptime who can smoothly transition from glare spam to medica spam, or the sylphie with 40% uptime placing regen on the SMN who’s been full health for the last 2 minutes